U.S. patent application number 11/077317 was filed with the patent office on 2005-09-15 for corridor connection of a connection having a bellows between two vehicles connected together by a joint.
Invention is credited to Karasek, Jens, Koch, Robert.
Application Number | 20050200098 11/077317 |
Document ID | / |
Family ID | 34813656 |
Filed Date | 2005-09-15 |
United States Patent
Application |
20050200098 |
Kind Code |
A1 |
Koch, Robert ; et
al. |
September 15, 2005 |
Corridor connection of a connection having a bellows between two
vehicles connected together by a joint
Abstract
The invention is directed to a corridor connection (1) of a
connection having a bellows between two vehicles connected together
by a joint (30), e.g., of an articulated bus or a vehicle with a
trailer, the corridor connection (1) comprising two overlapping
bottom plates (2, 3) that are slidable relative to each other, said
joint (30) including a joint carrier part (20) that is disposed on
the one vehicle part, the lower bottom plate (2) slidably resting
on said joint carrier part (20) and the upper bottom plate (3)
resting on said lower bottom plate (2) in the region of said joint
carrier part (20).
Inventors: |
Koch, Robert; (Bad
Sooden-Allendorf, DE) ; Karasek, Jens; (Kaufungen,
DE) |
Correspondence
Address: |
WELSH & KATZ, LTD
120 S RIVERSIDE PLAZA
22ND FLOOR
CHICAGO
IL
60606
US
|
Family ID: |
34813656 |
Appl. No.: |
11/077317 |
Filed: |
March 10, 2005 |
Current U.S.
Class: |
280/403 |
Current CPC
Class: |
B61D 17/20 20130101 |
Class at
Publication: |
280/403 |
International
Class: |
F28F 003/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 11, 2004 |
DE |
10 2004 011 865.5 |
Claims
1. A corridor connection (1) of a connection having a bellows
between two vehicles connected together by a joint (30), e.g., of
an articulated bus or a vehicle with a trailer, characterized in
that the corridor connection (1) has two overlapping bottom plates
(2, 3) that are slidable relative to each other, said joint (30)
including a joint carrier part (20) that is disposed on the one
vehicle part, the lower bottom plate (2) slidably resting on said
joint carrier part (20) and the upper bottom plate (3) resting on
said lower bottom plate (2) in the region of said joint carrier
part (20).
2. The corridor connection as set forth in claim 1, characterized
in that the upper and/or the lower bottom plate (2, 3) are
configured to be flexible and abrasion resistant.
3. The corridor connection as set forth in claim 1, characterized
in that the upper and/or the lower bottom plate (2, 3) are made
from a plastic material.
4. The corridor connection as set forth in claim 3, characterized
in that reinforcing elements are incorporated into the plastic
material of the respective one of the bottom plates (2, 3).
5. The corridor connection as set forth in claim 1, characterized
in that sliding elements (9) for the lower bottom plate (2) are
disposed on the joint carrier part (20).
6. The corridor connection as set forth in claim 1, characterized
in that the joint carrier part (20) has a tie bar (21) that is
disposed on the joint carrier part (20) in the region where the
lower bottom plate (2) merges into the upper bottom plate (3).
7. The corridor connection as set forth in claim 1, characterized
in that the joint (30) has two crosswise-disposed arms (31) with
the arms being rotatably fastened at their one end to the joint
carrier part (20) and at their other end to joint brackets (4),
with said joint brackets (4) being disposed on the other vehicle
part.
8. The corridor connection as set forth in claim 7, characterized
in that, in the region where they are linked to the joint carrier
part (20), the joint arms (31) have at their end a cam (31a) for
receiving a damper (25), said damper (25) communicating with the
joint carrier part (20).
9. The corridor connection as set forth in claim 1, characterized
in that the lower bottom plate (2) has a gable-like end region in
the region of the upper bottom plate (3).
10. The corridor connection as set forth in claim 8, characterized
in that, in the region of the joint brackets (4), the lower bottom
plate (2) has a hinge (8) for folding the lower bottom plate (2)
upward.
11. The corridor connection as set forth in claim 1, characterized
in that, in the region where the upper bottom plate (3) merges into
the lower bottom plate (3), the front edge of the upper bottom
plate is rounded inward.
12. The corridor connection as set forth in claim 1, characterized
in that the front side of the upper bottom plate (3) has a sealing
lip (23) that extends over the length of the front side.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims Priority from German Application No.
DE 10 2004 011 865.5 filed on 11, Mar. 2004.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates to a corridor connection of a
connection having a bellows between two vehicles connected together
by a joint, e.g., of an articulated bus or a vehicle with a
trailer.
[0004] 2. Description of the Prior Art
[0005] Corridor connections of the most different types are well
known as part of a connection between vehicles connected together
by a joint, of an articulated bus for example. All of these known
corridor connections however are supported by the joint. It is
possible to have the corridor connection supported by the joint
because the pivot point at the joint is stationary. In this
respect, the corridor connection only needs to be a plate supported
by the hinge. Two portions of the corridor project as far as said
plate and are connected by a hinge to the bottom of the vehicle in
order for the joint to be accessible so that the corridor parts may
be appropriately folded upward.
[0006] Another joint is known, the rotation center of which is not
stationary though. Such a joint is known from DE 102 09 354 A1 and
is referred to herein as "universal joint". The peculiarity of said
joint is that it is built in a relatively short construction
schedule and that the pivot point of the joint moves outward in
accordance with the radius of the curve the vehicle has to thread.
This means that the pivot point is not stationary. In this respect,
a corridor construction as it is known from prior art is out of the
question.
BRIEF SUMMARY OF THE INVENTION
[0007] It is therefore the object of the invention to provide a
corridor connection that is not supported by the joint and that, in
this respect, may also be utilized with connections having joints
the pivot point of which is not stationary.
[0008] This object is solved, in accordance with the invention, in
that the corridor connection comprises two overlapping bottom
plates that are slidable relative to each other, the joint
including a joint carrier part that is disposed on the one vehicle
part, the lower bottom plate slidably resting on the joint carrier
part and the upper bottom plate being supported by the lower bottom
plate in the region of the joint carrier part.
[0009] It is obvious therefrom that the corridor connection is no
longer supported by the movable parts of the joint but by the
stationary parts of said joint. Meaning, there exists an
unsupported portion of the corridor connection so that sagging may
occur. This free portion of the corridor connection is short
though, since the universal joint, as already explained herein
above, is also built in a short construction schedule.
[0010] Further advantageous features and implementations will
become apparent from the dependent claims.
[0011] For example, in accordance with a particular feature of the
invention, it is provided that the upper bottom plate is flexible
and abrasion resistant. As already explained herein above, the
upper bottom plate slides on the lower bottom plate. In this
respect, a certain abrasion resistance and slidability between the
two bottom plates is advantageous; said advantage may be achieved
by having the upper bottom plate made of a plastic material for
example. The lower bottom plate should also be elastic as it is
also subjected to deformation, for example during nodding
movements. In this respect, the lower bottom plate can be
manufactured in the same manner as the upper bottom plate.
[0012] In order to provide such a plastic bottom plate with the
required stability, reinforcing elements are incorporated in the
plastic material of the bottom plate in accordance with another
feature of the invention. This means that a bottom plate
manufactured by injection moulding is injection moulded around the
corresponding inserted reinforcing elements.
[0013] Since the lower bottom plate also executes a movement
relative to the joint carrier part on which it is resting when the
vehicle is threading a curve, it is necessary to permit sliding
movement between the surface of the joint carrier part on the one
side and the underside of the lower bottom plate on the other side.
In this respect, sliding elements for sliding movement of the lower
bottom plate are provided on the joint carrier part. A reversed
arrangement of the sliding elements on the lower bottom plate may
also be envisaged. Such sliding elements may be particularly
abrasion resistant plastic parts and may furthermore have a low
coefficient of friction.
[0014] Advantageously, the joint carrier part has a tie bar that is
disposed on the joint carrier part in the region where the lower
bottom plate merges into the upper bottom plate. Said tie bar
serves as an additional support and bearing surface for the lower
bottom plate and therefore comprises corresponding sliding elements
for the sliding movements of the lower bottom plate in this region
as well.
[0015] As already explained herein above, the corridor connection
described herein above is particularly suited, in accordance with
the invention, for what is termed a universal joint. Such a
universal joint comprises two crosswise-disposed joint arms with
the joint arms being rotatably fastened at their one end to the
joint carrier part and at their other end to joint brackets, with
said joint brackets being disposed on the other vehicle part. It
should be reminded here that the present invention finds
application both in articulated vehicles and in pullers having an
uncouplable trailer. Such a universal joint is further
characterized in that, in the region where they are linked to the
joint carrier part, the joint arms comprise at their end a cam for
receiving a damper, said damper being for example configured to be
a hydraulic piston and cylinder unit that communicates with the
joint carrier part. It is obvious therefrom that the deflection of
the joint arms is dampened when the vehicle is threading a
curve.
[0016] In order to make certain that the lower plate will not
protrude laterally from the upper bottom plate when the vehicle is
threading a curve, the lower bottom plate comprises a gable-like,
that is slightly conically tapering end region in the region of the
upper bottom plate.
[0017] As already explained herein above, and more particularly
when the corridor connection is used for the connection of a
vehicle consisting of a puller and a trailer, the puller should be
usable separately from the trailer. This also means that the
corridor connection must also be readily dividable. In this
respect, it is provided that the lower bottom plate, which is
fastened to the other vehicle part, comprises a hinge in the region
of the joint brackets in order for the bottom plate to be foldable
upward when the rear vehicle part is being uncoupled from the front
vehicle part.
[0018] It is further provided that the front edge of the upper
bottom plate is configured to be rounded inward in the region where
it merges into the lower bottom plate. Such an inward rounded upper
bottom plate permits to save material, which translates into a
saving of costs and furthermore causes the two bottom plates to
overlap in the region of the joint carrier part. The important
point however is the following aspect: in configuring the upper
bottom plate to be rounded inward, the relative velocity of the two
moving bottom plates is reduced as compared to the case in which
the upper bottom plate were to overlap the lower bottom plate over
a large surface. This finally serves the comfort needs of the
passengers and their security needs as well. Furthermore, a sealing
lip for preventing dirt from penetrating into the joint from the
top is provided in the region of the front edges of the upper
bottom plate.
[0019] The invention will be understood better upon reading the
exemplary description accompanying the drawing.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING
[0020] FIG. 1 is a top view of the corridor connection with the
universal joint being visible.
[0021] FIG. 2 is a side view taken along line II-II of FIG. 1;
[0022] FIG. 2a is an enlarged detail of FIG. 2;
[0023] FIG. 3 is a view taken along line III-III of FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
[0024] The corridor connection, which is indicated generally at 1,
comprises the lower bottom plate 2 and the upper bottom plate 3.
The lower bottom plate 2 is carried on the two joint brackets 4
that are fastened to the chassis of the front car 5. The upper
bottom plate 3 is carried on the joint carrier part indicated at 20
and is rigidly connected with screws both to the latter and to the
chassis 6 of the rear car. A vertical spacing X (FIG. 2), which is
configured in the fashion of a pocket and serves to movably receive
the lower bottom plate 2, is located between the upper bottom plate
3 and the joint carrier part 20. The joint carrier part 20 moreover
has a tie bar 21 that extends parallel to the transverse axis of
the joint or parallel to the transverse axis of the vehicle in
general, with the lower bottom plate slidably resting on the tie
bar 21. For this purpose, the tie bar 21 has sliding elements 9 on
which the lower bottom plate slides. The joint carrier part 20 has
further sliding elements 9 between the lower bottom plate 2 and the
joint carrier part 20 for the lower bottom plate 2. The sliding
elements may however also be disposed in reverse, i.e., on the
bottom plate.
[0025] The joint itself is configured as follows: The joint, which
is indicated generally at 30, has the two crossing joint arms 31
and 32. At their one end, the two joint arms are respectively
rotatably and non-rotatably carried on the joint bracket 4 with the
assistance of a bearing 4a. At their other end, the joint arms 31
and 32 are received by the joint carrier part 20. The joint carrier
part 20 also possesses a bearing 20a for rotatably receiving the
two joint arms. At their end, the joint arms are each provided with
a cam 31a and 32a respectively, a piston and cylinder unit 25 that
is connected to the bearing pillow 26 of the joint carrier part 20
being disposed at a respective one of the cams. The linkage of the
piston and cylinder unit 25 or of the damper 25 respectively, both
to the respective one of the cams 31a and 32a and to the bearing
pillow 26, is pivotal.
[0026] In the region of the center of the bearing 4a of the joint
bracket 4, the lower bottom plate 2 moreover has a hinge 8 for
pivoting the lower bottom plate upward. In the region where the
upper bottom plate 3 merges into the lower bottom plate 2, it has
an inward rounded recess 12 on its front side, said recess 12
approximately conforming to the orientation of the tie bar 21. The
sealing lip, which forms the front side end, is labelled at 23.
Said sealing lip prevents dirt from penetrating into the joint.
[0027] In the region of the joint carrier part 20, the lower bottom
plate 2 furthermore has a gable-like orientation that is indicated
by the arrow 16 so that the lower bottom plate is prevented from
protruding laterally from the upper bottom plate 3 when the vehicle
is threading a curve.
[0028] The bellows surrounding the connection and the joint has
been removed in the drawing.
* * * * *